Last updated: 6 Oct 2026 | 20 Views |
In mid-September 2026, persistent heavy rain on the Andaman side sent flash floods through Ban Pak Khlong (Moo 3) and Ban Tha Han (Moo 2) in Romanee subdistrict, Kapong district, and through Bang Wan, Mae Nang Khao and Khura subdistricts of Khura Buri district, Phang Nga province. Flash floods arrive fast, carry mud, branches and silt into homes, temples and schools, and then drop again quickly. What they leave behind is a thick layer of mud, moisture soaked deep into wood and walls, and germs, mold and musty smells that linger for weeks. This article summarises what the news reports say, explains every kind of germ a flash flood can bring, and sets out the recovery order to follow before ozone disinfection in Kapong and Khura Buri so that it is effective and safe.
According to reports by Daily News and Thai Post on 18 September 2026, continuous heavy rain caused flash flooding in Phang Nga. In Romanee subdistrict, Kapong district, Ban Pak Khlong (Moo 3) and Ban Tha Han (Moo 2) were affected. The Ban Pak Khlong monastery was flooded almost up to its roof, and in some places the water was more than 1 metre deep. Six students were also stranded at their school while the water was high. In Khura Buri district, covering Bang Wan, Mae Nang Khao and Khura subdistricts, around 30 houses were reported damaged.
These details describe the situation on the date of the reports and can change at any time. The reports do not give water depths inside individual homes or break down damaged houses by subdistrict, so this article does not guess at further numbers. Please follow the latest announcements from the Kapong and Khura Buri district offices, local administrative organisations and Phang Nga's disaster prevention and mitigation office.
Nationally, Daily News reported DDPM data as of 06:00 on 5 October 2026: 26 provinces plus Bangkok affected, 1,270,151 households and 3,519,416 people. Thai PBS reported that ONWR warned of heavy rain and flash floods from 5 to 7 October in the north and parts of the south. Families in Phang Nga who have already lived through one flash flood should follow local warnings closely and plan their recovery with more rain in mind.
Kapong and Khura Buri are districts where hills and forest sit close to villages. Many families tap rubber or grow oil palm. Homes include raised wooden houses, single-storey concrete houses and houses with a lean-to for plantation tools. When heavy rain falls in the hills, water rushes into the canals and becomes a fast, muddy flash flood that carries soil, sand, branches and plantation debris into the community.
A flash flood comes and goes quickly, but it leaves a much thicker layer of sediment than slow standing water. Mud sticks to floors and walls, collects under cupboards and inside drawers, and soaks into timber. As it dries, it turns to dust that floats in the air, while mud that stays wet in corners becomes a home for bacteria and mold. Raised wooden houses often have mud trapped underneath and along the beams; concrete houses have mud in tile joints and along the base of walls.
For a monastery flooded almost to the roof, recovery is even harder: monks' quarters, the hall, storerooms, robes, mats, pillows and shared items used by the whole village all need attention. A school where students were stranded must clean classrooms, the canteen and toilets thoroughly before children return, because children touch floors, desks and shared items all day long.
The WHO, the CDC and Thailand's Department of Disease Control agree that after a flood people should watch for water and food borne illness, skin problems, infected wounds and breathing problems caused by mold. These are the groups of germs residents of Kapong and Khura Buri should know about.
Flash floods that run through plantations, animal pens and septic tanks carry bacteria from human and animal waste, such as E. coli and Salmonella, which cause diarrhoea, stomach pain, nausea and food poisoning. These bacteria survive in wet mud and get onto hands easily while shovelling. Leptospirosis, known as rat urine disease, is also found in plantation and rural areas. The bacteria come from the urine of rats and some other animals and enter through cuts or skin soaked for a long time. Remember the signs: sudden high fever, headache and muscle pain, especially in the calves. Anyone with these symptoms after wading or working in mud should see a doctor straight away and mention it. Cuts from wood, nails or metal sheeting carried by the water can also become infected, so clean wounds well and see a health worker if a cut is deep or turns red and swollen.
Norovirus and rotavirus spread through contaminated food and drinking water and cause vomiting and diarrhoea; young children can become dehydrated quickly. Influenza and RSV spread easily where people gather, such as a temple hall or school used as a temporary shelter, and when everyone is worn out from cleaning. Frequent handwashing and separate dishes for anyone who is unwell matter a great deal.
The CDC recommends cleaning and drying a home within about 24 to 48 hours after the water recedes to reduce mold. On the Andaman coast during the rainy season, humidity is high and rain keeps returning, so homes dry slowly. Mold can grow on walls, ceilings, wooden cupboards, mattresses, curtains and monks' robes. Spores cause allergies, sneezing, blocked noses, coughing and itchy eyes, and can trigger asthma.
The smell after a flash flood is distinctive: fermenting mud in corners mixed with the musty odour of mold and sewage from overflowing septic tanks. Odour molecules soak into wood, fabric and grout, so the smell lingers even after the floor has been washed several times.
Older people with chronic conditions, young children and schoolchildren who touch floors and shared items, pregnant women, people with chronic illness and anyone with weakened immunity should return to homes, temples or schools only after the space is clean and dry. For monks at a monastery that flooded deeply, villagers can help arrange a dry, well-ventilated place to stay while the quarters and hall are restored.
Often overlooked are the people shovelling mud and the rubber tappers who go back to their plantations early. They have the longest contact with water and mud and often have small cuts on their feet and hands. Wear boots, gloves and a mask, wash with soap every time, and go to hospital if fever, calf pain or diarrhoea appears in the following two weeks.
Health: Diarrhoea, rashes, athlete's foot, infected cuts and allergies from mold and mud dust are common after returning home. Dust from dried mud can make breathing problems worse.
Cost: Damaged homes need repair, items buried in mud must be thrown out, and income from rubber or oil palm may be interrupted by heavy rain. If mold is allowed to eat into timber or ceilings until they must be replaced, costs rise further.
Time and labour: Shovelling thick mud out of homes, temples and schools takes many people and many days. Communities often work house by house, and having to come back because of mold or smells is exhausting.
Temples and schools: Shared spaces bring many people together, so making them clean and safe is a matter for the whole community, not just one family.
Family and wellbeing: A fast-rising flash flood is frightening. Returning to a home that is clean, dry and easy to breathe in helps families feel safe and start again.
A pressure washer and nothing else: It clears mud from surfaces, but mud remains in timber joints, under cupboards and inside soaked walls. Spraying water inside a house before the power has been cut can also be dangerous.
Pouring bleach onto mud: Bleach loses its strength on dirt and mud, so the mud must be removed first. Never mix bleach with ammonia or some toilet cleaners, because dangerous gas is produced.
Keeping the house shut because it is still raining: During the Andaman rainy season many families keep windows closed all the time, which traps moisture and speeds up mold. Open up whenever the rain stops.
Incense or perfume: These only mask odours, and incense smoke in a closed room irritates the airways.
Painting or wallpapering over: If the wall is still damp with mold beneath, stains return and the new finish blisters or peels.
World Health Disinfection (WHD) provides residential and building ozone disinfection for homes, condominiums, shops, offices, schools, hotels and other buildings. Ozone (O3) is a strong oxidising gas. Released in a closed, empty room, it spreads throughout the space, reaching corners, the underside of furniture and gaps hands cannot reach. It breaks down the structures of viruses, bacteria and mold and breaks down odour molecules, then reverts to oxygen (O2) without leaving chemical residue.
According to test results certified for the company, from the Department of Medical Sciences and Intertek (UK), the process eliminates viruses, bacteria and mold by 99.99%. After a flash flood, though, ozone only works well once the mud is out and the space has been washed and dried. Ozone does not remove mud, does not dry timber and does not replace medical treatment.
WHD is based in Bang Khae, Bangkok 10160, and has no branch in Phang Nga. Service in Kapong and Khura Buri is arranged by phone at 065-556-6294 or LINE @whd268. The team confirms travel, coverage and dates when you contact us. We do not promise same-day arrival, so get in touch while you are still clearing mud.
Safety comes first. Check that posts and floors have not sunk or been weakened, cut the power and have an electrician inspect the system. Shovel mud out while it is still wet, because dried mud hardens and turns to dust. Wash floors, walls and furniture with clean water and detergent, discard anything soaked in mud that cannot be saved, such as mattresses, pillows, rugs and food, then ventilate and use fans or a dehumidifier until surfaces are dry.
At that point, ozone helps deal with germs and smells remaining in the air and on surfaces. Temples and schools should schedule treatment when nobody needs the space, such as before classes resume or while monks are staying elsewhere. If heavy rain or flash flood warnings are issued for the area, it may be wise to push the appointment back a little so the work does not need repeating.
Note: this example case is put together from situations that commonly follow flash floods. It is not about a real person and it is not a customer review.
Picture Prasert, a rubber tapper in his sixties who lives in a raised wooden house by a canal in Romanee with his wife and their kindergarten-age granddaughter. On the night heavy rain falls in the hills, the canal rises very fast and Prasert takes his wife and granddaughter to a relative's house on higher ground. The next morning the water starts to drop, but the space under the house is full of mud, branches and rubbish. Upstairs, mud has come in across the floor and along the lower walls, the mattress and pillows are coated, and the bottom of the wooden wardrobe is damp.
Prasert and his neighbours shovel the mud out while it is still wet, wash the wooden floors and walls with clean water, throw away the muddy mattress and pillows, wash the clothes, cut the power for an electrician to check, and open every window whenever the rain stops. About a week later the house looks dry, but it still smells of mud and must, especially in his granddaughter's room, where white mold spots are appearing on the wooden wall.
In a case like this, Prasert could contact the WHD team on LINE, send photos and give his location in Kapong. The team would advise him to wipe away the visible mold first, check that the timber is dry enough and then plan ozone treatment for the bedroom and living room. Everyone, including the family dog, must leave the house during treatment and the rest period, and the house is ventilated as the technician advises afterwards. If his granddaughter develops diarrhoea, or Prasert gets a fever and calf pain after working in the mud, they both go to a doctor at once, because ozone does not treat illness.
Q: Does WHD have a branch in Phang Nga?
A: No. WHD is based in Bang Khae, Bangkok. Upcountry work is arranged through 065-556-6294 or LINE @whd268, and the team confirms travel and coverage when you contact us.
Q: There is still mud in the house. Can we do ozone first?
A: Not recommended. Remove the mud, wash and dry first. Mud is a source of germs and smell, and while it remains, ozone is poor value.
Q: Can a temple or school use the service?
A: Yes. WHD serves many building types, including schools and shared buildings. Book a time when nobody needs the space.
Q: Can anyone stay in the room during treatment?
A: No. The room must be empty. People, pets and plants leave and return after the rest and ventilation period the technician advises.
Q: How long does it take?
A: Typically about 30 minutes per zone, not counting preparation, rest and ventilation.
Q: I have a fever and calf pain after shovelling mud. What should I do?
A: See a doctor quickly and say you waded through water or mud, as it may be leptospirosis. Ozone is not a treatment.
Once your home, temple or school is free of mud, washed and dry, contact the team to assess the space, plan a date and ask about travel to Phang Nga.
See the Ozone Disinfection Service
Call 065-556-6294 | LINE @whd268 | worldhealthdisinfection@gmail.com
Note: flood information reflects the dates given in each report and changes daily. Please follow the latest local announcements.
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